Contraflip's answer to puerile projectiles is this flaming cannon.
At first sight, it looks like a tame duct tape and cardboard craft project. Then he fires it. The barrels (made of paper towel rolls) are connected, so the gun can fire all fourteen balls, Gatling gun style.
The fuel of choice here is either methanol or ethanol. Use extreme caution when discharging this weapon. It's not a toy.
